●prostate gland:>60 5x4×5cm <60 3 ×2 x3 cm ●seminal vesicle 2 MRI (magnetic resonance imaging)-transection,coronal On TIWI,prostate gland demonstrates homogeneous intermed iate-to-low signal intensity Zol anatomy of the is best depicted transition or central zone 2 ⚫ prostate gland：＞60 5  4  5 cm ＜60 3  2  3 cm ⚫ seminal vesicle ⚫ ② MRI（magnetic resonance imaging）-transection, coronal ⚫ On T1WI, prostate gland demonstrates homogeneous intermed iate -to-low signal intensity; ⚫ Zonal anatomy of the prostate gland is best d epicted on high-resolution T2WI: Transitional Zone, Central Zone, Peripheral Zone; ⚫ Contrast-enhanced MR images, the peripheral zone enhances more than the transition or central zone 20min